Pivoting Tailgate Spare Tire Mount for Cargo Space Access
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Solution Overview
Problem
Existing vehicle spare tire storage solutions require multiple persons for installation and removal, and they do not optimize space utilization or vehicle departure angle.
Innovation Solution
A tubular tailgate with a pivot tube and mounting bracket that allows the spare tire to be mounted inboard or outboard, using a clevis pin or spring detents for secure positioning in two configurations, facilitating single-person operation and improving space efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the spare tire is mounted outboard of the vehicle, then accessibility and visibility are improved, but interior cargo volume is reduced
Solution Approach 1:
The spare tire mounting system employs a dynamic, movable bracket that can pivot between an inboard position (maximizing cargo volume) and an outboard position (maximizing accessibility). The bracket rotates on a pivot tube attached to the tailgate, allowing the tire to be positioned flexibly based on operational needs rather than being fixed in one location.
2Volume of moving object
If the spare tire is mounted inboard of the vehicle, then interior cargo volume is maximized, but accessibility and visibility are reduced
Solution Approach 1:
The mounting system allows the bracket to be easily moved from the inboard position to the outboard position when tire access is needed, and returned to the inboard position when cargo space is prioritized. This dynamic repositioning resolves the contradiction by allowing the system to adapt to different operational requirements.
3Reliability
If traditional spare tire mounting methods are used, then secure retention is achieved, but installation and removal require multiple persons
Solution Approach 1:
The invention replaces the traditional complex mechanical mounting system with a simplified pivot-bracket mechanism that uses gravity and simple friction to secure the tire. The bracket pivots into position and naturally settles into a secure location, eliminating the need for multiple people to manually maneuver and secure the tire as required by traditional systems.
4Reliability
If the spare tire is mounted on traditional locations, then secure retention is achieved, but vehicle departure angle is compromised
Solution Approach 1:
By mounting the bracket on the tailgate with a pivot mechanism, the spare tire can be positioned inboard when the vehicle is in normal operation, maintaining proper departure angle. When needed, the tire can be swung outboard without requiring permanent modification to the vehicle's geometry or mounting structure.
Data Source
AI summary
A tailgate frame for a vehicle with a tubular cross bar and the frame pivotally attach with the vehicle. A spare tire support pivot tube is rotatably mounted on the tubular cross bar to enable the spare tire support to move between a first inboard and a second outboard position on the vehicle. A spare tire mounting bracket is coupled with the pivot tube. The spare tire mounting bracket has a shaft that extends from pivot tube and terminates at a plate that receives the spare tire. The spare tire mounting bracket, in the first position, mounts the spare tire in the vehicle and, in the second position, mounts the spare tire outside of the vehicle.